Spark-arrester.



c. H. GEQRQY a. M. F. HAMILTON.

SPARK ARRESTER.

APPucATloN min JuLvzs. 1914.

Patented Apr. 13, 1915.

mueran srarns rariaiwr onirica,

CHARLES Ei. GEORGY AND MILLARID FILLIVGRE HAMILTN, 0F LEBANON, PENN-SYLVANIA.

SPARK-AR-RESTER.

Application filed July 29, 1914.

To all 107mm it may concern Be it known that we, CHARLns H. Gnoner andMinnann FiLLMonn HAMILTON, citizens of the United States, residing atLebanon, in the county of Lebanon and State of rlennsylvania, haveinvented certain new and useful improvements in Spark-Arrestters, ofwhich the following is a specification.

rlhe present invention has reference to spark arrester-s, and itproposes, briefly, a device of the general class or character specifiedwhich comprises a substantially annular perforated tube or pipe situatedwithin the interior of the smoke stack directly above the damper andconnected with a source of steam supply, whereby the jets of steamissuing from the perforations in the pipe impinge against the ascendingsparks, cinders, soot and particles of carbon, with the result that theyare arrested and caused to fall back into the combustion chamber, while,at the saine time, any live sparks or cinders are extinguished.

rl`he improvements wherein the invention resides relate primarily to themounting of the attore-mentioned perforated tube, and to the connectionof the steam-supply pipes thereto.

rin embodiment of the invention is illustrated in the accompanyingdrawing, in which Figures 1 and 2 are fragmental side elevations, takenat right angles to each other, of a smoke stack equipped with theimproved spark arrester; and Fig. 3 is a transverse section.

ln said drawing, 1 indicates, generally, the stack of a locomotive orother engine, 2 the damper plate arranged therein, and 3 the rod foradjusting the damper.

The spark arrester is located within the said stack directly above thedamper, as previously stated, and embodies a loopshaped, orsubstantially-annular pipe or tube l whose threaded terminals 5 passthrough openings formed in the stack and in a pair of juxtaposed plates6, the latter being bolted to the outer face of said stack. rllllie pipel is disposed horizontally, as shown, and is formed along its innersurface with a longitudinal series of perforations 7 that are soarranged as to direct the jets of steam inwardly toward the center ofthe stack, as will be understood from Fig.

Specification of Letters Patent.

Patented tpr. 113, 1915..

serial no. erases.

3, thereby causing the jets to intersect the ascending column ofcinders, sparks, etc.

The pipe l is supplied with steam from the boiler by means of the pipingsystem represented in Fig. 2, wherein the pipe section 8 leading fromthe boiler is shown as having one end threaded and fitted in one arm ofcoupling 9, the opposite arm of which receives one end of a pipe section10 alining with pipe 8. The stem of this coupling receives one end of ashort threaded section 11 that is fitted at its other end in an elbow12, the latter having also connected to it one end of a second threadedsection 13 whose other end is connected to a sleeve or tting 14,-, andto the said sleeve is attached a third threaded section 15. Thelast-named section. and the lower end of the pipe 10 are equipped withelbows 16 and 17 to which are also connected the projecting ends 5 ofthe jet pipe el. A

The operation is believed to be apparent from the foregoing, and,therefore, to require no further explanation, since it will beunderstood that the jets of steal i serve to prevent the sparks,cinders, etc., from passing above pipe l, and to extinguish the saidsparks and the live cinders. By connecting the component members of thepiping system to one another and to the jet pipe, all of such membersmay be readily coupled and uncoupled, thus enabling any injured part tobe readily replaced. rJ'he jet pipe itself is supported by the passageof its terminals through the stack and the plates 6.

What is claimed is :M

rlhe combination, with a stack having a pair of juxtaposed openings, anda pair of plates secured to the exterior of the stack and havingopenings registering with the first-named openings; of a loop-shaped,perforated pipe arranged horizontally within said pipe and having itsterminals projecting outwardly through said registering openings; and apipe system for supplying steam to the perforated pipe embodying a pairof superposed vertical sections, a T- coupling connecting theconfronting ends thereof, an elbow connecting one end of one of saidsections and the adjacent projecting terminal of said perforated pipe, alateral section connected to the stem of said coupling, an elbowconnected to the outer end of said lateral section, a pair of superposedsections arranged opposite and in spaced, parallel relation to thefirst-named In testimony whereof We afl'x our signzln Vertical sectionaioreszud, one of the seoondtures 1n presence oi two wltnesses. namedvertloal sections being connected to the lastnamed elbownnd the other ofsuch i HI'IIOMM Ow 5 section to the other projecting terminal of F l L1l' the perforated pipe, and a sleeve connecting Witnesses:

the confronting ends of the second-named WV. C. GRAEFF,

parir of vertical sections. W. L. GELBAoI-I.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

